Improvement in sewing machines



@nimh tant @anni @ffice GEORGE ELMES. OF CHES'lER'lOl'VN, NEW YORK, ASSIGNOR TO HIMSELF AND? F. B. WELLS, OF CANAAN, HAMPSHIRE.

' Lettera Patent No. 67,965, dated August 20, 186Y i IMPRGVBMENT 1N SEWING i/niomrms.Y

T0 ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE ELMES, of Ohestertown, Warren county, New York, have invented :t new and useful Improvement in Wax-Thread Sewing Mnchinesg. and I'do hereby declare that the following is a. full, clear, and exact description thereof', which will'enuhle thoseskilled inthe nrt to make nml use thesnme, reference being Vhad to the accompanying drawings, forming part ot' this specification, in ivhichw Figure 1 is an' end view of my improved device for hearing` down the presser-foot of asewingyiimchine upon leather. Y i

v:Figure 2 is n side view of the sume.

Similar letters of reference indicate corresponding parts.

This invention relates to an improvement'on Townshends wax-thread sen-ing machine, and consists in a. reciprocating rod axed to the machine in such e manner that cams placed-on the driving-Wheel shell move it in one direction, while a spiral spring shell move it in the opposite direction for the purpose of bearing down the presser-foot firmly on leather of anythickness, whileit is sewed, the operation being such thetithe pressure is withdrawn when the feed movement takes place, twice in every revolution ot` the driving-wheel.

A is a reciprocating rod,`designed for connection. with a. wnvx-threml sewing machine, for sewing leather. One end of the rod has n. long, Hut. shovel-head, a, which is placed ycrticnlly ntthe head of the machine alongside ofthe presser-foot-bar b, and runs in grooves supported by en iron side piece, c, fastened to the mz'ichine. The other end of the rod A `passes through the standard B of the supporting-hrm of the machine, extending to the driving-wheel C,- on the periphery 'of which are cams b b, pleced diagonally to catch against :t pin, d, `on the end of the rod A, for drawing it outward and liberating-the presser-foot at the moment the leather passes under it. On one side of the flat head a of the rcd'A, is placed an incline, c, that acts es a campby catching against apin on the side ofthe presser-foot har 6, to force it down nnd'press the foot herd upon the leather, for holding it tight while the needle is in the cloth, which action of the rod A is produced by a spiral spring, g, coiledV around'it, that throws the rod-forward the moment the pin d is released by either cem b.

Having described. my invention, I claim as new, and desire to secure ,by Letters Patent The reciprocating rod A, provided with the incline `e on the` head a, the piu d, and the spiral spring g, in combination withthe driving-wheel C. and presserfoot of e wax-thread sewing machine, arranged and operating substantially as and for the purposes herein shown and described.`

GEORGE ELMES- Witnesses:l

T. OLcorT, CHARLES D. TULL. 

